Mathematics, 29.11.2019 01:31 annetteaudc

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a(x) = (3x+1)(5x--12)(3x+1)-9x^2 + 1
b(x) = (4x+5)^2 - (2x-3)^2
a) factorise a(x) and b(x)

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a(x) = (3x+1)(5...

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